macOS known issues
Analysis / inference: Microsoft details known issues, process crashes, and required version updates for Defender for Endpoint on macOS.
- Dates
- Source and collection dates not recorded
- Source
- Microsoft Defender for Endpoint releases · Limited verification
- Classification
- Microsoft Security
Section 01 · Summary analysis
Known issues were documented for macOS builds including performance degradation and process crashes on build 101.26012.0015, alongside OS-specific interactions affecting Full Disk Access, Bluetooth device control, and Network Protection extensions.
AI summary / analysis; claims are not independently verified. Check the primary source before acting.
Section 02 · Analysis
SecOps Signal analysisUnresolved stability and integration issues on macOS can degrade telemetry collection, disable security extensions, and compromise endpoint visibility in the SOC.
Endpoints running vulnerable Defender builds or affected macOS versions may suffer intermittent network loss, constant process restarts, or disabled security capabilities.
Section 03 · Recommended actions
- Update affected production devices running build 101.26012.0015 to Hotfix version 101.26012.0017.
- Upgrade macOS Sequoia 15.0 systems experiencing network extension crashes to version 15.1 or newer.
- Instruct users to deny incoming connection prompts for Defender processes on macOS Sequoia 15.0 through 15.1.1, or configure enterprise allow lists.
- Verify the installed Microsoft Defender for Endpoint version across macOS endpoints against Build 101.26012.0015.
- Check macOS versions on endpoints running Network Protection to identify devices exposed to network extension crashes on Sequoia 15.0.
- Confirm Full Disk Access authorization status for Defender security extensions following OS upgrades.